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(No Model.) 2 SheetsSheet 1.

P.X.HOLZLE. ROTATING LETTER PRESS PRINTING MAGHINE. No. 519,956. Patented May 15 1894.

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ms NATIONAL umcannmme COMPANY.

WASHINGTON. n. c.

r 2 Sheets--Sheet 2. F. X. HOLZLB. ROTATING LETTER PRESS PRINTING MAGHINE.

Patented May 15, 1894.

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NW W 6 7 m UNITED STATES PATENT OFFICE.

FRANZ XAVER HGLZLE, OF I-IEIDELBERG, GERMANY.

ROTATING LETTER-PRESS PRINTING-MACHINE.

SPECIFICATION forming part of Letters Patent No.519,956, dated May 15, 1894.

Application filed June 3, 1893. Serial No. 476,439. (No model.)

To all whom it may concern:

Be it known that I, FRANZ XAVER I-l'ciLZLE, of Heldelberg, in the Empire of Germany, have nvented a new and useful Improvement 1n Rotary Printing-Machines, of which the followingis aspecification,reference being had therein to the accompanying drawings. Letter press printing machinery at present in use, may for the purpose of this descriptron, be divided into two classes, namely those in WlllCh a flat or plane printing surface is employed, and those which possess a cylindrical printing surface. The first mentioned class of machines, although they render clear impressions have the disadvantage of being slow in their operation. Cylindrical printing machinery on the other hand, possesses the quality of speed, but necessitates the use of curved stereotyped printing surfaces, which are at once expensive in their production and are open to objection as regards the impres- SlOllS which they render.

My object is to combine both features and in a pr ntlng machine constructed according to my lnvention, I employ a flat printing surface with a rotary action whereby good impressions are obtained with high speed; the machine being at the same time simple in its construction and capable of being cheaply produced.

In the drawings hereto annexed, Figure 1, is an end elevation of my improved printing machine. Fig. 2 is a central longitudinal sectlon in elevation. Figs. 3, 4 and 5 are detail views of the rolls.

Upon reference to the drawings, it will be seen that 03 designates the main. frame of the machine. The printing table 0 is mounted upon the shaft b driven by the belt wheel d mounted on a stud g secured to the main frame through the pinion fand spur wheel g. The impression cylinder m is carried by the axle 70, whose bearings 7 have vertical play in the guides h formed in the main frame. The ends of the axle k are provided with rollers '12. which work in channels 19 formed in the revolving radial arms 6 of the table 0. The printing table is provided with a surface plate 0' capable of vertical adjusttact with the paper upon the surface of the impression cylinder m by means of the rims q raised upon both parts. Upon one end of the table 0 there is formed the segmental spur Wheel 8 which gears with the spur wheel rot the impression cylinder m. Tapes 2' carried by the rollers s conduct the paper to be print ed upon from the source of supply to the cylinder m and return it to the delivery table in the usual manner.

In operation the printing table being in the position shown in Fig. 5, when motion is being imparted to the wheel 01 the table 0 is revolved in the direction of the arrow. The printing type receives ink from the rollers w and 'y and then passes under the paper carried by the pressing roller m. During this action, the channels p of the arms e iuclose the rollers n of the axle 7t and draw down the impression cylinder m and the paper carried thereby onto the surface of the type t, the flattened portion of the segmental spur wheel .9 coinciding with and enabling this movement to be accomplished. As the table 0 revolves, the surface 0 takes ink from the roller 20 and spreads it upon the rollers o, w, g. It will thus be seen that a continuous rotary action is obtained with the use of a fiat printing surface.

Having thus described my invention, the

following is what I claim as new and desire to secure by Letters Patent:

The combination of the main frame having vertical guides, the rotating table having a flattened portion and radial arms, extending from the flattened, portion, formed with channels parallel with thefiattened portion, the impression cylinder having journals,bearings for the journals located and sliding in the guides, gearing whereby the table and cylinder are caused to rotate in unison, and In witness whereof I have hereunto set my means for rotating the table; the journals of hand in presence of two witnesses.

the cylinder bein extended so as to enter the channels of th e arms, whereby the arms FRANZ XAVER HOLZLE' 5 are adapted to hold the cylinder down on the Witnesses: flattened portion of the table; substantially JOSEF SCHLEGEL, as described. .J OH. FRIESS. 

